Home / 865,890.34-1,298,285.35-759,488.00

Finding the Fourth Proportional to 865,890.34, 1,298,285.35 and 759,488.00

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Solution

The fourth proportional to 865,890.34, 1,298,285.35 and 759,488.00 is: 1,138,749.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,890.34 : 1,298,285.35 = 759,488.00 : x
  2. Step 2: Convert to fraction form
    865,890.34/1,298,285.35 = 759,488.00/x
  3. Step 3: Cross multiply
    865,890.34x = 1,298,285.35 × 759,488.00
  4. Step 4: Simplify right side
    865,890.34x = 986,032,135,510.65
  5. Step 5: Solve for x
    x = 986,032,135,510.65/865,890.34
  6. Step 6: Final answer
    x = 1,138,749.44

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.